Appointment of Sector Chief Executives
28 May 2026
Halma plc, the global group of life-saving technology companies focused on growing a safer, cleaner, healthier future for everyone, every day, today announces a change in its Sector Chief Executive leadership.
Constance Baroudel, Environmental & Analysis Sector Chief Executive, will leave Halma at the end of August 2026 to become Chief Executive of Spectris Ltd. Ensuring an orderly transition, she will be succeeded by Steve Brown, currently Healthcare Sector Chief Executive, from 1 September 2026.
As part of this succession, Bill Stoval, currently a Healthcare Sector Divisional Chief Executive, will be promoted to Healthcare Sector Chief Executive, and become a member of our Executive Board.
Constance Baroudel, Environmental & Analysis Sector Chief Executive said: “After eight incredibly fulfilling years at Halma, this is the right moment for me to take on a new leadership challenge. Halma has played a defining role in my career development, giving me the opportunity to grow across a range of leadership roles and to work alongside outstanding companies and colleagues, whom I would like to thank for their dedication and companionship. I am immensely proud of what we have achieved together and remain fully committed to ensuring a smooth and effective handover over the coming months.”
Marc Ronchetti, Group Chief Executive, said: “Constance has made an exceptional contribution to Halma in her eight years with the Group and we are grateful for her dedication and impact. I would like to thank her for her partnership and support, and wish her all the best in her new role at Spectris.
I am delighted to appoint Steve and Bill as Sector Chief Executives for Environmental & Analysis and Healthcare, respectively. These changes clearly demonstrate the strength of Halma’s succession planning and the depth of leadership talent within the Group.
Steve brings a strong leadership track record and deep experience of Halma’s Sustainable Growth Model and culture. He has a proven ability to build close partnerships with our companies across all three sectors, including as a Divisional Chief Executive in the Environmental & Analysis Sector.
Bill’s promotion reflects his outstanding leadership within our Healthcare Sector over the last seven years. He has delivered sustainable growth through close collaboration with our companies’ leadership teams and through value-accretive acquisitions. His understanding of Halma’s purpose-led culture and organisational model make him exceptionally well placed to lead the sector through its next phase of growth.”
For further information, please contact:
| Halma plc | |
|
Marc Ronchetti, Group Chief Executive Carole Cran, Chief Financial Officer |
+44 (0)1494 721 111 |
| Melanie Horton, Co-Head of Investor Relations | +44 (0)7554 013 396 |
| Charles King, Co-Head of Investor Relations | +44 (0)7776 685 948 |
| MHP | |
| Oliver Hughes/Rachel Farrington/Ollie Hoare | +44 (0)7817 458 804 / [email protected] |
A copy of this announcement, together with other information about Halma, may be viewed on our website www.halma.com.
NOTES
BIOGRAPHIES
Steve Brown: Steve was appointed to the Executive Board in November 2021. He is an experienced Halma leader, having driven success in the business for more than ten years across different roles in all three sectors. Steve has a strong track record of building high-performing teams and delivering organic and acquisition growth. Prior to his appointment as Healthcare Sector Chief Executive, Steve was Divisional Chief Executive of Halma’s Environmental & Analysis Sector, Divisional Chief Executive for the Safety Sector and Managing Director of Apollo, one of Halma’s largest companies. Steve joined Halma in 2015 from US global industrial company ITW. He holds a Masters in Engineering from the University of Cambridge.
Bill Stoval: Bill is a Divisional Chief Executive in Halma’s Healthcare Sector. In his role, Bill chairs the boards of several of Halma’s healthcare companies and is responsible for delivering both organic growth and acquisitions. He joined Halma in 2019 following a career spanning over twenty years in the healthcare and technology sectors, including senior roles at major global companies including GE Healthcare and IBM Watson Health where he built and led businesses. Bill brings strong leadership, strategic, operational and entrepreneurial skills and has delivered an impressive track record of organic and acquisition growth at Halma. He holds a Computer Engineering degree from the University of Notre Dame and a Masters in Electrical Engineering from Marquette University, as well as an MBA from the Kellogg School of Management at Northwestern University.
About Halma
Halma is a global group of life-saving technology companies, focused on growing a safer, cleaner, healthier future for everyone, every day. Its purpose defines the three broad market areas where it operates:
Safety: Protecting the safety of people and assets as populations grow and the demand on infrastructure increases.
Environment: Addressing the impacts of climate change, pollution and waste, protecting life-critical resources and supporting scientific research.
Healthcare: Meeting the increasing demand for better healthcare as chronic illness rises, driven by growing and ageing populations and lifestyle changes.
Halma employs over 9,000 people in more than 20 countries, with major operations in the UK, Mainland Europe, the USA and Asia Pacific. Halma is listed on the London Stock Exchange (LON: HLMA) and is a constituent of the FTSE 100 index.
Halma has been named one of Britain's Most Admired Companies for the past seven years.
